Cable supported structures have inspired andrnfascinated people for many decades. Today’srncables structures are recognized as uniquernand innovative structural solutions, whichrncreate new and dramatic forms whilernenclosing large spaces and providing newrndesign opportunities. This paper presentsrnseveral unique aspects of cables and cable-stayedrnstructures, and some of the uniquerndesign considerations that should bernevaluated by structural engineers.rnThis paper also includes a case study on ThernUniversity of Chicago Ratner Athletics Center,rna recently completed cable-stayed structurernthat celebrates 150,000 square feet of health,rnfitness, and sporting activity space. The $51rnmillion state-of-the-art athletics facilityrnincludes a competition gymnasium, anrnOlympic-sized natatorium, and a myriad ofrnother spaces that accommodate virtually anyrnathletic activity. Designed by internationallyrnrenowned architects Cesar Pelli & Associates,rnand engineered by OWP/P Structures inrnChicago, the project features a first-of-its-kindrnasymmetrically supported cable-stayedrnsystem that gracefully suspends S-shapedrnroofs that float over the large volumerngymnasium and natatorium spaces. Thisrninnovative structure utilizes 10-story tallrncomposite masts and a series of splayedrncables that support shallow curved steel roofrnmembers. The thin roof framing is cold-bentrnto shape, and delicately suspended over thern160-foot spans. The tapered masts arernstabilized by back-stay cables anchored inrnplace by massive concrete counterweightsrnthat counteract the weight of the roof.
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机译：数十年来，电缆支撑的结构激发了人们的注意力。当今的电缆结构被公认为是独特且创新的结构解决方案，可以创造出新颖而引人注目的形式，同时封闭大空间并提供新的设计机会。本文介绍了电缆和斜拉结构的几个独特方面，以及结构工程师应重新评估的一些独特设计注意事项。本文还包括芝加哥拉特纳大学体育中心的案例研究，该研究最近完成了庆祝15万平方米的斜拉结构健康，健身和体育活动空间的脚。这项耗资$ 51亿元的最先进的体育设施包括竞赛体育馆，奥林匹克规模的游泳馆和无数其他空间，几乎可以容纳任何体育活动。该项目由国际知名建筑师Cesar Pelli＆Associates设计，由OWP / P Structures inrnChicago设计，该项目具有首个对称对称支撑的斜拉系统，该系统优雅地悬挂了S形屋顶，这些屋顶漂浮在大面积的体育馆和游泳馆空间上。这种创新的结构利用了10层高的复合材料桅杆和一系列支撑浅弯曲钢屋顶构件的斜拉索。薄薄的屋顶框架呈冷弯形，并巧妙地悬挂在160英尺的跨度上。锥形桅杆通过后撑电缆稳定，该后撑电缆通过可抵消屋顶重量的大型混凝土配重锚固到位。
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